Automatic valve for gas lines



Jan. 13, 1931. D. L. iBfROWN 8 KU'I'OMATIC VALVE FOR GAS LINES Filed Feb. 27, 1950 2 Sheets-Sheet 1 Z mull") 26 ,r f Inventor %vz d Z. Brawn A itorney Jan. 13, 193 1. D. L. B-ROWN 1,788,368

AUTOMATIC VALVE FOR GAS LINES Filed Feb. 27, 1930 2 sheets-sheet 2 T k i6 Jwvnkil $2020.73

A l lome y Inzienlor V Patented Jan. 13, 1931 P TENT, FFICE] DAVID L. :BROWN, or wnLLsroN, oxIiAHoMA, ASSIGNOR or TWO-FIFTHS r0 inc s ons corn, oroxLsHoMA CITY, OKLAHOMA AU'roMA'rIcvALvE roReAs LINES Application filed February 27, 19am Serial No. 431,838.

This invention relates to valves for gas lines. The present invention relates to new and useful improvements in valves ofthe type employed in long distancegas lines,the.p resent invention having as its princ1palob ect,

the provision of means'for' quickly shutting off the pipe-line when abreak. occurstherein by reason of contraction in cold weather or because of other conditions, permitting the gas to escape withgreat-velocity,

In present day pipe lines,an enormous pressure is requiredto effect the passage of the gas between remote pointsfand under this enormous pressure, considerable gas can cs cape when a break occurs before the conventional shut off typesof valves found; nowin use, can close, causing considerable property damage and frequent personal injuries and lossoflife. 2 13 7 Therefore, another important object ofthe invention is to provide a valve constructed in such a manner as to be capable of closing against the enormous pressure now-utilized in an almost instantaneous operation.

In the following specification and claims, other important objects and advantages of the inventionwill'more readily become apparent to the reader. a,

In thedrawings:-

Figure 1 representsa side of the novelvalve. r c

Fig. 2 represents an end elevation of the novel valve structure.

Fig. 3 is a vertical sectional view thru the valve structure taken substantially on the line 3-3ofFig.2. a i a Fig. 4 is a fragmentary vertical sectional view taken substantially on the same line as is Fig. 3, in Fig. 2, but showing the valve ele elevational view ment in line closing position. v Fig. 5 is a top plan viewof thenovel valve element.

Fig. 6 represents a side elevational view of the bolt impelling means. 7

Fig. 7 is another elevational viewof the bolt impelling means. w

Fig. 8 represents a top plan vl'ew'of the bolt and showing in dotted lines the pinion for mesh therewith. e

Fig. 9 is a side elevational view of the pmcumferential flange on the ion and means for-connecting the same to the means shown in Flg. 6. j

Referringto the drawings whereinililre numeralsde'signate like parts, it can be seen) in Fig. 1, that numerals 5- 5 represent theadjacent ends of a pair; of'alined pipe sections. Each of these pipe ends is providedwithia circumferential flange 6 for opposed dispoQ sitionwith respect to a correspondingcircomplementary end of the valve shell 8.

Aslis clearly shown in Fig. 3,: the shell 8 isprovided with a depending tubular struc ture 11, thelower end of which is open and normally closed by the plate 12. Feedable by threads through the closure plate 12 is a screw 13 impingingagainst the followerl l slidablewithin the tubular construction 11.

. Also s'lidable within the tubular construc tion :11 thecylindrical valve element 15 portion of the shell 8 is provided withva bore 16 in. continuity with the opening in the tu- It can'be seen that the wall of the bore 16 isprovided with a pair of verticallydis: posed guide ribs 18 which are received by the longitudinally extending channels 19, at dia- Vmetrically opposite points on the valve element 15} VA bolt end receiving recess 20 is providedin the valve element 15] for receiving the line bolt2l, the latter being slidable through a guideway 22 in'the lowerfportion ofthe shell8. i H The outer end of the guideway 22 canbe opened by removing the detachable plate 23, thus permitting access to the bolt 21. A spring 24 is interposed betweenthe said plate 23, and the outer end or" the bolt 21 which tends to urge the bolt 21 inwardly toward thevalve-element15. v

As is clearly shown in Fig. 8, the bolt 21 is provided with rack teeth 25, which are con. nected'by the gear 26 on thestub shaft 27 The wrench en'gageable construction 28 is 77c and as is clearly shown in Fig. 3, the upper 7 portion 29 which is engageable into the lower i Le t it portion of the rotatable post 30. p

This post 30 has an upwardly extending reduced shaft extension 31, provided with a wrench engageable portion-32 at its upper end. As is clearly shown in Fig. 3,"the-"stub" shaft 27 supports the lower end of the'post';

30, while the shaft portion 31 is journ-aledthrough the follower 38iwhichiis included in the packing gland'construction, generally referred to by numeral 34.

' Projecting in diametrically opposite di-- rections from the post 30 are pins 35-35,

wings 36-36.. These wings are so consti'ucted' and essentialist the pins35 35 to permit one pair thereof-to collapse when gas line.

pressure in the gas linedoesnot afl'ectithe wingsionthe post 30, but in the event of a breakage'in' the pipe line, the releasement .of the gas will result in a tremendousdischarge through 1 the valve, andthissudden impulsive action of the gas acting against the resistingset of wings, 86- 36,will' exert'the post 30to' rotate and impartthrough the gear 26 and teeth25,rectilinear motion-*to the bolts 21, obviously retracting the same frointhe recess'20' in the valve elementlh'.

' Asis clearly shownin' Fig. 3, the coiled spring 87, interposed between the "follower 14; and the' valve element "1 5 is normally A compressed, andwhen the valve element 15 is released, the" springywill almost in stantly urge. the same, to the position;- shown in Fig; 4 wherethe passageway 17 through the valve will be'closed."

For re-setting the valve element 15, a spider construction 38 ismounted upon the shell 8 and secured thereto by screws ".39. This spider 38 supports thefeed screw40, which" is adapted to be fed by the/nub 41 provided with the hand wheel construction fWhen the valve mm the position shown iny-Fig. 4, the operation of resetting the same is performed as follows: The 'screwflO isfed' downwardly so that itsi-lower end will seat in the concavity 48 of the upper end of the valve element 15. By now f'eedin'gthe screw downwardly, the valvefelement will be shifted downwardly againstlthe tension: of the spring 37 until the 1 recessY2 0, reaches a pointopposite the inner 'end of the bolt 21', whereupon the post 30 is to tated by engaging the wrenchwith-theaportion 32 of its shaft extension 31, which results in the sliding of ,thegbolt 2l soas to engage with the valve element.

Manifestly, a valve constructed in' accord ance with the foregoing"specification, will be far more quick-acting andpractical in 1,7ss,ses

the other p'air resisting the pressure inflthe' Furthermore, while the foregoing specification has set forth the invention in detail, it is to be understood thatnumerous changes initheshape, sizeandvmaterials may be .re-

sorted'to without departing from the spirit and scope of the invention as claimed hereinafter.

what I claim as new is 1;,A valve oft1 e character described com prising a shell, a vertically movable valve each carrying a pair ofihi'ngedly connected element in..-the;.- said: shell, a horizontal passageway through the shell, a vertical shaft across {the -p as'sageway, wings on th shaft, a 'spriiigifdr norfrrally urging 'tlievalve element *upw'ardly to a' c jl6s 'ed*position with V l s respect toi'lthe "pa sageway-"end a tri gger be understood-thatnormally,the

en-gageable;with;t said 'valve element and 'ving} thus described, my invention,"

uilapted' tof'be operated by thejs'aid shaft.

' 2: AV-aTVeQoftliech arac 'r described coma; shell, a verti ally movable valve prising element in the} said shell,- Y a horizontal passageway throiigh' tlfieshellg a vertical shaft acro'ssth'e passagewayywings on the shaft,

aspring for; normally-fir ing the valve e'le-:

ment upwardly to a close position with respect to the passageway, a trigger engage-1 able with thefisaid valve element and adapted to beoperated by the-said shaft, and means for adjusting the-tension of the said spring.

3 3 Kvalive of th'echaracterdescribedi'coIn-= prising a. shell, a vertically movable-valve element in the said shell, ahorizont'al passagewey; through? the shell, a vertical shaft eeressythe passageway,=wings on the shaft,

as rin for norinall ur' T the valve ole-- P y g ment upwardly 't'o" ael'osed"position with respect to thepas'sa gewa-y, a trigger engageable with the said valve: element? and adapted" to be operated by the said shaft, I and means for re-setting the said valve element.

4:. A valve of the character described comprising a shell, a vertically movable valve element in the said shell, a horizontal passageway', wings on the shaft, a; spring "for normally urging the valve elementnpward- 1y toaclosejdp'ositiion with respect to the passageway, a trigger 1 enga geab'l'e with the 'saidvalve elementand adapted to be operated by the said'fshaffij; means for re -setting the-said valve elementysaid means for resetting the val ve element-comprising a feed screw feedable through the upper portion of-the shell mean's' for feeding the said screwwhereby it may engage with the valve element and force the 1 same downwardly.

,5. A valve'of the character described'coinprisiir'ga shellhaving-a passageway there-- through, a transversely extendingb'orein the said shell intersecting the saidpassageway, "a valve element sl-idable in the said bore, spring means fo r urging thevalveelement to a'cl'ose'd position, a bolt? for retainits ing the said valve element in a retracted position, pressure controlled means for actuating the bolt to release the same from the said valve element under a predeterminedly high pressure, said means comprising an impeller mounted Within the passageway, a gear driven by the said impeller, rack'teeth on the bolt With which the gear'meshes and a a spring for urging the said bolt toward the valve element.

In testimony whereof I alfix my signature.

DAVID L. BROWN. 

